:root {
    --cls-teal: #009999;
    --cls-orange: #FF9933;
    --cls-dark-blue: #1A3C58;
    --cls-light-gray: #f7f9fc;
    --cls-medium-gray: #e0e4e8;
    --cls-dark-gray: #4a5568;
    --cls-red: #e53e3e;
    --cls-green: #38a169;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--cls-light-gray);
    color: var(--cls-dark-blue);
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

.navbar {
    background-color: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.navbar-brand img {
    height: 55px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.page-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--cls-medium-gray);
}

.page-header h1 {
    color: var(--cls-dark-blue);
    margin-bottom: 0.5rem;
}

.page-header p {
    color: var(--cls-dark-gray);
    margin-top: 0;
}

.card {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    margin-bottom: 1.5rem;
    overflow: hidden;
    border: none;
}

.card-header {
    background-color: var(--cls-dark-blue);
    padding: 1.25rem 1.5rem;
    color: white;
    font-weight: 600;
    font-size: 1.1rem;
    border-bottom: none;
}

.card-body {
    padding: 1.5rem;
}

.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
    display: block;
    color: var(--cls-dark-blue);
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: var(--cls-dark-blue);
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid var(--cls-medium-gray);
    border-radius: 6px;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
    border-color: var(--cls-teal);
    box-shadow: 0 0 0 3px rgba(0, 153, 153, 0.15);
    outline: 0;
}

.btn {
    display: inline-block;
    font-weight: 500;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    user-select: none;
    border: 1px solid transparent;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    line-height: 1.5;
    border-radius: 6px;
    transition: all 0.15s ease-in-out;
    cursor: pointer;
}

.btn-primary {
    color: #fff;
    background-color: var(--cls-teal);
    border-color: var(--cls-teal);
}

.btn-primary:hover, .btn-primary:focus {
    background-color: #008080;
    border-color: #008080;
}

.btn-secondary {
    color: #fff;
    background-color: var(--cls-dark-blue);
    border-color: var(--cls-dark-blue);
}

.btn-secondary:hover, .btn-secondary:focus {
    background-color: #152d42;
    border-color: #152d42;
}

.alert {
    position: relative;
    padding: 1rem 1.5rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: 6px;
}

.alert-danger {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

.results-container {
    margin-top: 2rem;
}

.results-card {
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.medication-details {
    margin-bottom: 1.5rem;
}

.medication-details h3 {
    margin-top: 0;
    color: var(--cls-dark-blue);
}

.medication-details p {
    margin: 0.25rem 0;
    font-size: 1.1rem;
}

.recommendation-box {
    padding: 1.5rem;
    border-radius: 6px;
    text-align: center;
    margin-bottom: 1.5rem;
}

.recommendation-box h3 {
    margin-top: 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.recommendation-box.buy-bill {
    background-color: rgba(56, 161, 105, 0.1);
    border: 2px solid var(--cls-green);
}

.recommendation-box.buy-bill h3 {
    color: var(--cls-green);
}

.recommendation-box.specialty-pharmacy {
    background-color: rgba(229, 62, 62, 0.1);
    border: 2px solid var(--cls-red);
}

.recommendation-box.specialty-pharmacy h3 {
    color: var(--cls-red);
}

.profit-details {
    background-color: rgba(26, 60, 88, 0.05);
    padding: 1.5rem;
    border-radius: 6px;
}

.profit-details h4 {
    margin-top: 0;
    color: var(--cls-dark-blue);
}

.profit-value {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--cls-dark-blue);
    margin: 0.5rem 0;
}

.back-link {
    display: inline-block;
    margin-top: 1rem;
    color: var(--cls-teal);
    text-decoration: none;
    font-weight: 500;
}

.back-link:hover {
    text-decoration: underline;
}

/* Responsive styles */
@media (max-width: 768px) {
    .card-body {
        padding: 1.25rem;
    }
    
    .form-control {
        padding: 0.5rem 0.75rem;
    }
    
    .btn {
        padding: 0.5rem 1.25rem;
    }
    
    .results-card {
        padding: 1.25rem;
    }
}

/* Accessibility focus styles */
:focus {
    outline: 3px solid rgba(0, 153, 153, 0.5);
    outline-offset: 2px;
}